From 8797dd71e710120158a191ace6dbe769b2485cf0 Mon Sep 17 00:00:00 2001
From: Marek Polacek <polacek@redhat.com>
Date: Tue, 18 Jun 2019 20:55:46 +0000
Subject: [PATCH] re PR c++/71548 (Invalid declaration involving template
 template param causes crash)

	PR c++/71548
	* g++.dg/cpp0x/variadic177.C: New test.

From-SVN: r272438
---
 gcc/testsuite/ChangeLog                  |  5 +++++
 gcc/testsuite/g++.dg/cpp0x/variadic177.C | 12 ++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp0x/variadic177.C

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index cbbaacdeac6..a348251a930 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-06-18  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/71548
+	* g++.dg/cpp0x/variadic177.C: New test.
+
 2019-06-18  Richard Sandiford  <richard.sandiford@arm.com>
 
 	* gcc.target/aarch64/sve/struct_vect_18.c: Allow branches to
diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic177.C b/gcc/testsuite/g++.dg/cpp0x/variadic177.C
new file mode 100644
index 00000000000..96736a0ac0a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/variadic177.C
@@ -0,0 +1,12 @@
+// PR c++/71548
+// { dg-do compile { target c++11 } }
+
+template<typename> class fl {};
+template<typename = void, template<class...> class = fl>
+struct S {};
+template<typename... T>
+void f(S<T...> ) {}
+void lol() {
+    S<> s;
+    f(s); // { dg-error "no matching function for call to" }
+}
-- 
2.30.2